: A substance that blocks the effect of the sun's harmful rays. Using lotions that contain sunscreens can reduce the risk of skin cancer, including melanoma.

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A topicalproduct that protects the skin from ultraviolet-induced erythema and resists washing off; its use also reduces formation of solar keratoses and reduces ultraviolet-B-induced melanoma and nonmelanoma skin cancers and wrinkling.

sun·screen (sunґskrēn″) a topical agent that protects the skin from the effects of the sun's rays, either absorbing ultraviolet radiation or by reflecting the incident light, or both. Called also solar screen or sun screen. The term is often used interchangeably with sunblock.

sunscreen — ► NOUN ▪ a cream or lotion rubbed on to the skin to protect it from the sun … English terms dictionary

sunscreen — [sunskrēn΄] n. 1. a substance, esp. para aminobenzoic acid, used in tanning lotions, cosmetics, etc. to block certain ultraviolet rays of the sun and reduce the danger of sunburn 2. such a preparation … English World dictionary

sunscreen — UK [ˈsʌnˌskriːn] / US [ˈsʌnˌskrɪn] noun Word forms sunscreen : singular sunscreen plural sunscreens 1) [countable/uncountable] a cream that you can rub onto your skin to stop it from being burned by the sun 2) [countable] a screen that you put on … English dictionary

sunscreen — noun Sunscreen is used before these nouns: ↑lotion … Collocations dictionary